SPECIAL REPAIR/REPLACEMENT TO WATER SUPPLY PIPE LINES AGAINST OLD VINTAGE AT SARAIBARI IN JORHAT MIL STN

Amount

Excavating in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth; for foundation, etc. or for shafts, wells, cesspits, manholes, pier holes, etc. or for cable laying or water supply pipes lines etc or not exceeding 10 sqm on plan and not exceeding 1.5 m in depth and getting out in soft/ loose soil complete all as specified and as directed.

Returning, filling in, including spreading, levelling, watering and well ramming in layers not exceeding 25 cm in soft/ loose/ hard/ dense soil complete all as specified and as directed.

Removing excavated material (soils) not exceeding 50 m and depositing where directed at a level n exc. 1.5 m above the starting point

Taking up cast iron water mains (including all fittings), 100 mm nominal size, with spigot and socket ends and lead joints including burning out joints and recovering lead complete all as specified and as directed.

Taking up or down 80 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Taking up or down 40 mm or 50 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Taking up or down 25 mm or 32 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Taking up or down 20 mm bore of steel tubing and connections, including cleaning for refixing or removal to store or taken on schedule of credit complete all as specified.

Supplying & laying in trenches 100 mm nominal dia ductile iron pressure pipe for water mains, centrifugally cast, spigot and socket ends (for push on joints), class K9 in any length complete all as specified and as directed. Note- Rubber gasket joints (push on joints) shall be measured and paid separately.

Supplying & laying in trenches 80 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 50 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 40 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 25 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

Supplying & laying in trenches 20 mm nominal bore, medium grade, galvanised coated steel tube conforming to IS 1239 (Part-1): 2004 including all fittings conforming to IS 1239 (Part-2): 2011 complete all as specified and as directed.

S & F in repairs 50 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs 40 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs 25 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs 20 mm gun metal, globe or gate valve with iron wheel head, screwed both ends for iron pipe and fixed to pipe complete

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 150 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 100 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 80 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 50 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

S & F in repairs butterfly valve (ISI Marked) cast iron double flanged, long type, lever operated, PN 1.6, class 300, nominal size 40 mm as per IS 13095: 1991 including necessary fittings complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 of preferred materials, nominal size 200 mm including nuts, bolts, packing sheets etc. complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 of preferred materials, nominal size 150 mm including nuts, bolts, packing sheets etc. complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 of preferred materials, nominal size 100 mm including nuts, bolts, packing sheets etc. complete all as specified and as directed.

M & L in repairs for rising stem type CI sluice valves having double flanged SS spindle for connections of nominal pressure (PN 1.6) as per IS 14846: 2000 of preferred materials, nominal size 80 mm including nuts, bolts, packing sheets etc. complete all as specified and as directed.

M & L for construction of new valve chamber of size 1000 mm X 1000 mm X 1000 mm with necessary brick work (subclass B) in CM 1:6, including necessary earth work in any type of soil, PCC foundation (1:3:6) type D-2, 20 mm grade stone aggregate as in base concrete, brick work in CM 1:4 with 10 mm thick plaster internally and 15 mm thick externally in CM 1:4, 4 mm thick MS cover with hinges and locking arrangement fixed to angle iron frame made out of 40 mm X 40 mm X 6 mm MS angles complete with 2 coats of synthetic enamel paint over one coat of red oxide prime on all metal works & three coats of white wash on all plastered surfaces of valve chambers complete all as specified & directed by Engineer-in-Charge.

M & L for construction of new valve chamber of size 600 mm X 600 mm X 600 mm with burnt brick (Sub class B) including necessary earth work in any type of soil, PPC foundation (1:4:8) type D-2 20 mm grade stone aggregate as in base concrete, brick work in CM 1:4 with 10 mm thick plaster internally and 15 mm thick externally in CM 1:4, 4 mm thick MS cover with hinges and locking arrangement fixed to angle iron frame made out of 40 mm X 40 mm X 6 mm MS angles complete with 2 coats of synthetic enamel paint over one coat of red oxide prime on all metal works & three coats of white wash on all plastered surfaces of valve chambers complete all as specified & directed by Engineer-in-Charge.

Materials and labour for filling / topping up filtration media gravel of size 20 mm to 40 mm, as per IS 8419 part-I 1977, inside existing rapid gravity filter / pressure filter at different locations complete all as specified and as directed.

Materials and labour for filling / topping up filtration media gravel of size 12 mm to 20 mm inside existing rapid gravity filter / pressure filter at different locations complete all as specified and as directed.

Materials and labour for filling / topping up filtration media gravel of size 6 mm to 12 mm, as per IS 8419 part-I 1977, inside existing rapid gravity filter / pressure filter at different locations complete all as specified and as directed.

Materials and labour for filling / topping up filtration media gravel of size 3 mm to 6 mm, as per IS 8419 part-I 1977, inside existing rapid gravity filter / pressure filter at different locations complete all as specified and as directed.

Materials and labour for filling / topping up filtration media sand, effective size 0.35 mm to 0.50 mm, hard and resistant quartz or quartzite, free from clay, fine particles, soft grains and dirt of every description, as per IS 8419 part-I 1977, inside existing rapid gravity filter/ pressure filter at different complete all as specified and as directed.

Materials and labour for filling / topping up Magnese dioxide (MnO2) (FERRIMENIX COMPOUND) media approx size 20mm-24mm with MnO2 content of minimum 65% inside existing aeration tower/Oxidation Chamber complete all as specified and directed.

Materials and labour for filling / topping up /Anthracite Cole, hard compact variety of Coal, having submetallic test use with carbon content between 92.1% and 98% media inside existing aeration tower/Oxidation Chamber complete all as specified and directed.

Designing, supplying, installing, testing and commissioning Activated Carbon Filter chamber of flow rate of 46 m³ per hour (10000 gallon per hour), vessel dia and height as per design calculation of Original Equipment Manufacturer (OEM), shell thickness minimum 8 mm and as per design calculation of Original Equipment Manufacturer (OEM), disc thickness minimum 10 mm and as per design calculation of Original Equipment Manufacturer (OEM), design pressure 3.5 Kg per cm², backward frequency when DP more than 0.6 Kg per cm², filled with media of granular activated carbon (IV450), course silex, filtering sand, crushed gravels, including internal and external painting, including inlet header and bottom concrete with header and lateral arrangement and bottom concrete, including frontal piping with UPVC, including required numbers of butterfly valves, pressure gauges, foundation, testing, flow indicator etc. all as per Original Equipment Manufacturer's (OEM) instructions, all as specified and as directed.

Supplying, installing, testing and commissioning high pressure single head gear motorised adjustable dosing pump, pressure 0 to 100 PSI, AC 230V, 50 Hz, HP 1/3, frictional output 02 to 04 US GDP complete with lead tubing, connecting nut, injection check valve, clay weight, ferrules along with altoch/alum dosing system consisting of 50 Ltr FRP tank with FRP lid & level gauge and aditator (1280 RPM) with shaft and blade in SS-316 (FRP/Epoxy coated) on tank complete all as specified. Lid shall have part hole for pouring altoch and water when necessary and provision for mounting Decrine dosing pump on Lid/wall complete all as specified and as directed. (MAKE : Pump : Declibac Technology Pvt Ltd Model 96NGQ51 or equivalent model. Aqitator : Declibac Technology Pvt Ltd or equivalent model.)

Supplying, installing, testing and commissioning in repair digital water level indicator with SCADA compatibility, wall mounted, fibre body, based on C Moss Technology for OH PS/RCC water reservoir having staging 12-15 mtrs complete all as specified and as directed.

M & L for rubber gasket joints (push on joints) for spigot/socket end ductile iron water mains/ductile iron specials complete for 100 mm nominal dia complete all as specified and as directed.

Supplying & laying cast iron specials, 150 mm nominal dia for mechanical and push on flexible joints for cast iron or ductile iron pressure pipe lines complete all as specified and as directed. Note- Rubber gasket joints (push on joints) shall be measured and paid separately.

M/s GOURAB JYOTI GOGOI

PURBANCHAL BUILDERS

M/S AK SINGH

M/S SR BUILDERS

ADITI CONSTRUCTION CO.